include/edm4eic/Cov2f.h

0001 // AUTOMATICALLY GENERATED FILE - DO NOT EDIT
0002
0003 #ifndef EDM4EIC_Cov2f_H
0004 #define EDM4EIC_Cov2f_H
0005
0006 #include <ostream>
0007
0008 #if defined(PODIO_JSON_OUTPUT) && !defined(__CLING__)
0009 #include "nlohmann/json_fwd.hpp"
0010 #endif
0011
0012 namespace edm4eic {
0013
0014
0015 /** @class Cov2f
0016  *
0017  *  @author:
0018  */
0019 class Cov2f {
0020 public:
0021   float xx{};
0022   float yy{};
0023   float xy{};
0024
0025  Cov2f() : xx{0}, yy{0}, xy{0} {}
0026  Cov2f(double vx, double vy, double vxy = 0)
0027  : xx{static_cast<float>(vx)}, yy{static_cast<float>(vy)}, xy{static_cast<float>(vxy)} {}
0028  float operator()(unsigned i, unsigned j) const {
0029  // diagonal
0030  if (i == j) {
0031  return *(&xx + i);
0032  }
0033  // off-diagonal
0034  // we have as options (0, 1), and (1, 0)
0035  // note that, starting from xy, we find the correct element at (i+j+1)/2)
0036  return *(&xy + (i + j + 1) / 2);
0037  }
0038
0039
0040 };
0041
0042 std::ostream& operator<<(std::ostream& o, const Cov2f& value);
0043
0044 #if defined(PODIO_JSON_OUTPUT) && !defined(__CLING__)
0045 void to_json(nlohmann::json& j, const Cov2f& value);
0046 #endif
0047
0048 namespace v850 {
0049 using Cov2f = edm4eic::Cov2f;
0050 } // namespace v850
0051
0052
0053 } // namespace edm4eic
0054
0055
0056 #endif